JPH06292841A - Liquid draining method of treating liquid and surface treating device - Google Patents

Abstract

PURPOSE:To completely remove a treating liquid even if objects to be treated have bent holes, etc., by rotating a bucket at a low speed around an inclined axis and repeating the rising and falling actions of the objects to be treated within this bucket. CONSTITUTION:After the bucket 36 is pulled upward out of the treating liquid 38, a motor 15 with a brake is driven to move a moving plate 5 and to incline a supporting frame 6 and a spindle 18. The objects to be treated in the bucket 36 rotate and move upward together with the bucket 36 when a driving motor 33 is rotated at a low speed in this state. The objects are then dropped by gravity. The postures of the objects to be treated are changed and the treating liquid 38 remaining in the bent holes is discharged when such actions are repeated. The bucket 36 is thereafter returned in a vertical direction and is rotated at a high speed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called liquid draining method for separating and removing a treatment liquid adhering to the surface of an object to be treated in the course of surface treatment and surface cleaning, and a surface treatment apparatus suitable for carrying out the method. is there.

[0002]

2. Description of the Related Art A conventional draining method is to store a large number of objects to be processed in a bucket mounted vertically.
After completion of the treatment, the bucket was rotated at a high speed around the vertical axis to shake off the treatment liquid adhering to the surface of the object to be treated by centrifugal force.

In a surface treatment apparatus used for carrying out such a method, a main shaft is supported rotatably around a vertical axis, and a bucket for accommodating an object to be processed is mounted on a lower end of the main shaft. At the same time, a rotary drive source for rotating the main shaft in one direction or reciprocally is provided.

[0004]

However, in the above liquid draining method, as shown in FIG. 7, the object 61 to be processed has a shape having a lateral hole 62 and a curved hole 64 consisting of a vertical hole 63 communicating with the tip thereof. At some point, when the bucket is pulled up after the processing is completed, the vertical hole 63 of the object to be processed faces downward and the horizontal hole 6
When 2 is oriented inward, there is a problem that the processing liquid accumulated at the bottom of the vertical hole cannot be removed even if the bucket is rotated at high speed around the vertical axis.

The present invention is directed to a liquid draining method capable of completely removing a treatment liquid even if an object to be treated has a shape such as a curved hole where the treatment liquid is likely to remain, and a surface cleaning apparatus suitable for carrying out the method. Is intended to provide.

[0006]

The liquid draining method of the present invention comprises:
In the surface treatment in which the bucket 36 accommodating a large number of the objects to be treated 61 is vertically mounted and the object to be treated 61 and the treatment liquid 38 are brought into contact with each other to perform surface treatment or surface cleaning of the object to be treated 61, It is characterized in that the bucket 36 is pulled up from the treatment liquid, then tilted and rotated at a low speed around the tilt axis, and then the bucket 36 is returned to the vertical direction and rotated at a high speed.

The surface treatment apparatus of the present invention comprises a main shaft 18 rotatably supported around a vertical shaft and a rotary drive source 33 for rotating the main shaft in one direction or reciprocatingly, and at the lower end of the main shaft 18. In a surface treatment apparatus for collectively performing surface treatment or surface cleaning of a large number of objects to be treated 61 accommodated in a mounted bucket 36, the main shaft 18 and the rotary drive source 33 are mounted on a tiltable support frame 6. The rotary drive source 33 has a low-speed rotation mode in which the bucket 36 is rotated at a low speed.
Is rotated at a low speed, and then the main shaft 18 is rotated at a high speed to drain the liquid.

[0008]

In the method of the present invention, the bucket 36 pulled up from the processing liquid 38 is tilted and the bucket 36 is rotated at a low speed around the tilt axis. Therefore, the object 61 to be processed moves upward in the bucket and then falls. Repeatedly,
The posture of the object 61 to be processed changes, and the processing liquid remaining in the curved holes 64 (see FIG. 7) and the like is discharged. After performing such an operation for a certain period of time, the bucket 36 is returned to the vertical direction and the main shaft 18 is rotated at a high speed to shake off the processing liquid adhering to the surface by centrifugal force. Can be completely removed.

Since the apparatus of the present invention tilts the support frame 6 supporting the main shaft to rotate the bucket 36 mounted on the lower end of the main shaft at a low speed around the tilting shaft, shaft runout can occur. Instead, it is possible to reliably change the postures of the many objects to be processed 61 accommodated in the bucket 36.

[0010]

2 to 5 show an embodiment of the surface treatment apparatus of the present invention. In FIG. 2, an elevating carriage 2 is provided to be vertically movable on a carrier 1 hung from a carriage that horizontally moves along a rail (not shown). A support bracket 3 is provided on the front surface of the lift truck 2, and a fan-shaped rail member 4 is fixed to the lower front surface of the support bracket 3. On the front surface of the rail member is provided a front-shaped moving plate 5 that moves along the rail member, and a rectangular support frame 6 is fixedly provided on the left side of the front surface. On the back surface (surface on the rail member side) of the moving plate, as shown in FIG.
The upper and lower rollers 7 and 8 and the eight front and rear rollers 9 and 10 which rotate around a vertical axis are provided at positions separated from each other. The upper roller 7 is on the outer diameter side rail 11 of the rail member, and the lower roller 8 is on the inner diameter side rail 1 of the rail member.
2, the front roller 9 contacts the upper and lower parts of the front surface of the rail member 4, and the rear roller 10 contacts the upper and lower parts of the rear surface of the rail member 4, respectively.

As shown in FIG. 5, on the front surface of the moving plate 5,
A motor 15 with a brake is provided, the output shaft of which extends through the moving plate 5 to a position above an arc-shaped rack 16 arranged in the center of the front surface of the rail member 4, and the rack 16 is provided at the tip thereof. The pinion 17 that meshes with is fixed. In the center of the support frame 6, a vertically extending main shaft 18 is rotatably supported by bearings 19 and 19, a driven pulley 20 is fixed to the upper end thereof, and a lower end of the main shaft 18 horizontally supports a grip claw 21. The arm 22 is fixed. An operating rod 24 is slidably provided in a through hole 23 provided in the shaft center of the main shaft 18, a rotary joint 25 is provided at an upper end thereof, and a link for operating the grip claw 21 is provided at a lower end thereof. A connector 27 connected to 26 is fixed.

As shown in FIG. 3, a chuck cylinder 31 is mounted on an auxiliary frame 30 fixed to the upper surface of the support frame 6 with its rod 32 facing downward, and the tip of the rod 32 is a rotary joint. It is connected to the operating rod 24 via 25. By moving the rod 24 back and forth, the gripping claw 2
1 can be opened and closed. A drive motor 33 capable of rotating in the forward and reverse directions is provided on the right side surface of the support frame 6. The drive pulley 34 fixed to the output shaft of the drive motor 33 and the driven pulley 2 of the main shaft 18 are provided.
The belt 35 is wound around 0. Drive motor 33
Has a low speed rotation mode for rotating the main shaft 18 at a low speed. By advancing the rod of the chuck cylinder, swinging the link 26, and opening the grip claw 21 outward,
A bucket 36 is mounted on the lower end of the main shaft 18. Reference numeral 37 denotes a processing tank arranged immediately below the bucket 36, and a processing liquid 38 is stored in this processing tank.

Next, the liquid draining method of the present invention will be described with reference to FIG. A large number of objects to be treated 41 shown in FIG. 7 are put in a bucket 36 that is oriented in the vertical direction, and the lift truck 2 is lowered and immersed in the treatment liquid 38 in the treatment tank 37. The surface treatment is performed by activating the drive motor 33 and rotating the bucket 36 in one direction or reciprocally. Next, the bucket 36 is pulled up from the processing liquid 38 and the motor 15 with a brake is driven to move the moving plate 5 to the position shown in FIG.
Move to the position indicated by the imaginary line above and stop the motor. As a result, the support frame 6 and the main shaft 18 are tilted, so that the bucket can be rotated around the tilt axis.

When the drive motor 33 is rotated at a low speed in this state, the object 61 in the bucket rotates with the bucket and moves upward, and falls due to gravity. By repeating such an operation, the posture of the object to be processed 61 is changed and the processing liquid remaining in the bending hole 62 is discharged. After a lapse of a certain time, the motor with brake 15 is reversely rotated to move the moving plate 5 to the right in FIG. 2 and stop the motor. The main shaft 18 oriented in the vertical direction is rotated at a high speed by the drive motor 33 to shake off the excess processing liquid adhering to the surface of the object to be processed by centrifugal force.

FIG. 6 shows another embodiment of the surface treatment apparatus of the present invention. In the device of this embodiment, the main shaft is supported by a slide bearing 42 so as to be vertically movable and rotatable, and the main shaft 1
A grooved disc 43 is fixed to the center of the disc 8 and a groove 44
A roller 45 is fitted to the horizontal shaft 4 which is rotatably supported by a bearing 46 on a support frame 6.
7 is attached to a pin 48 that is erected at an eccentric position on the left end face of the device 7. A pulley 49 is fixed on the center line of the right end surface of the horizontal shaft 47, and the pulley 5 provided on the output shaft of the swing motor 50 arranged below the pulley 49 and the supporting frame.
A belt 52 is wound around the belt 1.

A spline 53 is provided on the outer periphery of the upper portion of the main shaft 18.
Is provided, and the spline groove 55 of the driven pulley 20 rotatably supported by the bearing 54 on the support frame 6 is fitted to the spline. The auxiliary frame 30 that supports the chuck cylinder 31 is fixed to the upper end surface of the main shaft 18, and the tip of the rod 32 of the chuck cylinder 31 and the upper end of the operation rod 24 are connected. In the apparatus of the present embodiment, the bucket can be swung in the axial direction during surface cleaning or surface treatment work or during low speed rotation around the tilt axis,
More efficient processing and discharge of residual processing liquid can be performed.

[0017]

As described above, according to the method of the present invention, the bucket is rotated at a low speed around the tilt axis so that the object to be processed is repeatedly moved up and down in the bucket. The treatment liquid can be completely removed even in the case of an object having a shape in which the treatment liquid changes in various directions and in which the treatment liquid tends to remain, such as a curved hole. Further, in the surface treatment apparatus of the present invention, since the main shaft on which the bucket is mounted is supported by the tiltable support frame, the bucket can be rotated about the tilt axis. Further, since the rotation driving source of the bucket has the low speed rotation mode, the processing liquid accumulated in the bending hole or the like can be smoothly discharged by the low speed rotation of the bucket around the tilt axis.

[Brief description of drawings]

FIG. 1 is a flowchart showing a liquid draining operation of the present invention.

FIG. 2 is a sectional side view of the surface treatment apparatus of the present invention.

FIG. 3 is a front view of the surface treatment apparatus of the present invention.

FIG. 4 is a sectional view of part A in FIG.

FIG. 5 is an enlarged sectional view of a tilting mechanism.

FIG. 6 is a sectional side view showing another embodiment of the surface treatment apparatus of the present invention.

FIG. 7 is a cross-sectional view of an object to be processed

[Explanation of symbols]

 6 Support frame 18 Spindle 33 Rotation motor 36 Bucket 38 Treatment liquid 61 Workpiece

Claims (2)

[Claims] 1. A bucket containing a large number of objects to be processed (61)
(36) is mounted vertically, and the object to be treated (61) and the treatment liquid are
In the surface treatment of contacting with (38) and the surface treatment or surface cleaning of the object to be treated (61), the bucket (36) is lifted from the treatment liquid and then tilted and rotated at a low speed around the tilt axis, then A method of draining a processing liquid, which comprises returning the bucket (36) to a vertical direction and rotating at high speed. 2. A main shaft (18) rotatably supported around a vertical shaft, and a rotary drive source (33) for rotating the main shaft in one direction or reciprocatingly, the lower end of the main shaft (18). In a surface treatment apparatus for collectively performing surface treatment or surface cleaning of a large number of objects (61) housed in a mounted bucket (36), the spindle (18) and the rotation drive source (33) tilt. It is mounted on a possible support frame (6) and the rotary drive source (33) is
It is equipped with a low-speed rotation mode that rotates 6) at a low speed.After completion of processing, the support frame (6) is once tilted to rotate the spindle (18) at a low speed, and then the spindle (18) is rotated at a high speed to perform draining. A surface treatment device characterized by the above.